Three times...
Allentown, PA - Agricultural Hall - January 22, 1980
Championship Wrestling taping:
Aired February 2, 1980
Bruno Sammartino defeated Larry Zbyszko by DQ at 9:34 when Zbyzsko threw the referee to the floor and hit Sammartino in the head with a wooden chair three times, busting him open
New York, NY - Madison Square Garden - October 21, 1985 (19,000)
Bruno Sammartino as a guest of Piper's Pit in which Sammartino demanded Bob Orton leave the ring so that Piper could conduct the interview one-on-one; moments later, after receiving a number of insults from Piper, Sammartino shoved him down and was then assaulted by a chair; Sammartino eventually chased Piper away with the chair
Binghamton, NY - Broome County Arena - October 28, 1986 (6,400)
WWF Superstars taping:
Aired November 22, 1986
WWF IC Champion Randy Savage (w/ Miss Elizabeth) defeated Ricky Steamboat via count-out after crushing Steamboat’s throat against the guardrail, after hitting a double axe handle from the top at 7:03; after the match, Savage attacked Steamboat's larynx with the timekeeper's bell, jumping from the top rope, taking him out of action for several months; moments thereafter, Steamboat was taken from ringside on a stretcher
Bruno's matches with Zbyszko in 1980, Piper in late 1985/early 1986, and Savage in late 1986 helped the WWF greatly!
